Lashawn wants to buy some music online. there are two plans to choose from. the first plan is a flat rate of $1.29 per download. the second plan has a membership fee of $21 and the fee of $.99 per download. let x be the number of downloads and c be the cost whem are the costs of the twp planes equal to each other?

the answer is 8

step-by-step explanation:

3.14 x 8x8

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere